Alyssa Gregorec, PA
NPI 1992432520 · Physician Assistant · Pomona, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alyssa Gregorec, PA is a Physician Assistant provider in Pomona, CA (NPI 1992432520).
Provider details
- NPI number
- 1992432520
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
3 yrs in NPPES registry
- Profile completeness33% of score
83% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Eszopiclone | 22 | — |
| Prednisone | 21 | 19 |
| Fluticasone/Vilanterolbrand: Breo Ellipta | 19 | — |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 18 | 14 |
| Fluticasone/Umeclidin/Vilanterbrand: Trelegy Ellipta | 18 | 11 |
| Fluticasone Propion/Salmeterolbrand: Wixela Inhub | 17 | — |
| Azithromycin |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$794 across 29 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2022-08-03
- Last updated
- 2022-08-03
- Certified
- 2022-08-03
Frequently asked questions
- What is Alyssa Gregorec's NPI number?
- Alyssa Gregorec's National Provider Identifier (NPI) is 1992432520, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alyssa Gregorec's specialty?
- Alyssa Gregorec is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Alyssa Gregorec located?
- Alyssa Gregorec's practice location on file with NPPES is 309 E 2nd St, Pomona, CA 91766-1854.
- What is Alyssa Gregorec's phone number?
- The practice phone number listed in the NPPES registry for Alyssa Gregorec is (909) 623-6116.
- Does Alyssa Gregorec accept Medicare?
- Alyssa Gregorec is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alyssa Gregorec's NPI active?
- Yes — Alyssa Gregorec's NPI (1992432520) is active in the NPPES registry as of the last update on 2022-08-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.